Red_Nic Posted August 4, 2016 Share Posted August 4, 2016 Who knows how long I can safely listen to my radio for when my engine is switched off, before I would run my battery flat. ignition is on so radio can play. no fans or lights running. I get worried after 15mins, and turn radio off. Quote Link to comment Share on other sites More sharing options...
-Bradders- Posted August 4, 2016 Share Posted August 4, 2016 15 mins lol, i was on mine for about 45 mins yesterday with my phone on charge and stereo on, started straight up 2 Quote Link to comment Share on other sites More sharing options...
Stuggerz Posted August 4, 2016 Share Posted August 4, 2016 I would just keep an eye on your battery gauge on the centre console. Quote Link to comment Share on other sites More sharing options...
Commander Posted August 4, 2016 Share Posted August 4, 2016 P=IV, so assuming an 85AH battery and 12V, you have about 1kWh of power... Should give you a good few hours of radio playing before the juice gets too low to turn your lump over. Probably. Quote Link to comment Share on other sites More sharing options...
-G- Posted August 4, 2016 Share Posted August 4, 2016 As someone who used to have to jump start his old zed EVERY TIME he came from offshore, I don't blame you for worrying. Best thing to do is buy some extra long jump leads and stick them in with the space saver in the boot, then you (kind of) won't have to worry :-) Quote Link to comment Share on other sites More sharing options...
Juggalo Posted August 4, 2016 Share Posted August 4, 2016 (edited) What G said. Always carry jump leads. You just never know when you need them...or you can help some idiot out who's been listening to their radio too long Saved my ass a couple of times Edited August 4, 2016 by Juggalo Quote Link to comment Share on other sites More sharing options...
johnnyboy Posted August 9, 2016 Share Posted August 9, 2016 P=IV, so assuming an 85AH battery and 12V, you have about 1kWh of power... Should give you a good few hours of radio playing before the juice gets too low to turn your lump over. Probably. I doubt if the radio itself is using more that 20-30 watts of power, so a kilowat would presumably last 40 or 50 hours... at least... but that would leave nothing to start the engine with... and I don't know how much you would need to start the engine... and if you have big speakers on loud that would probably use a lot more anyway... I give up. Its all too difficult. I look forward to hearing how you get on.... Good Luck... John Quote Link to comment Share on other sites More sharing options...
JetSet Posted August 9, 2016 Share Posted August 9, 2016 (edited) Depends on the state and age of your battery I guess. For example just checking the tyre pressures on Caroline's Zed and adding 4-6 psi using a digital Michelin pump running off the cigarette lighter was enough to finish off her battery....I know, I know, I should have started the car first but didn't Pete Edited August 9, 2016 by JetSet Quote Link to comment Share on other sites More sharing options...
BulletMagnet Posted August 9, 2016 Share Posted August 9, 2016 Just take headphones and an iPod or your phone, ultimately it depends on how long you plan to stalk whoever Quote Link to comment Share on other sites More sharing options...
GizmoGold Posted August 9, 2016 Share Posted August 9, 2016 I was sat waiting for my eurotunnel train last month and had the battery die after leaving the radio on for a few hours = but I was charging 2 phones and a satnav at the same time. Jump started it but missed my train 😓 Sent from my iPhone using Quote Link to comment Share on other sites More sharing options...
Floydbax Posted August 9, 2016 Share Posted August 9, 2016 If your battery is OK then there's no need to worry as the radio and amp don't draw much power once turned on. You'd probably be able to have them turned on for several days before the battery dies. Quote Link to comment Share on other sites More sharing options...
Red_Nic Posted March 15, 2017 Author Share Posted March 15, 2017 thanks for the advice Quote Link to comment Share on other sites More sharing options...
Aashenfox Posted March 15, 2017 Share Posted March 15, 2017 These things are going to replace jump leads soon... http://www.ebay.co.uk/itm/12v-Powerful-Heavy-Duty-Car-Truck-Engine-Battery-Jump-Starter-Portable-Booster-/192098577012?hash=item2cb9f7aa74:g:YRIAAOSwo4pYmdNu Quote Link to comment Share on other sites More sharing options...
Randy_Baton Posted March 15, 2017 Share Posted March 15, 2017 You want one of these, as advertised on these very forums. As someones whose dashcam can kill a battery in under a year I can vouch for how great they are. http://www.350z-uk.com/topic/93077-super-powerpack-palm-size-jump-pack-that-start-v8/ Quote Link to comment Share on other sites More sharing options...
Red_Nic Posted March 15, 2017 Author Share Posted March 15, 2017 interesting. ok thanks Quote Link to comment Share on other sites More sharing options...
HEADPHONES Posted March 15, 2017 Share Posted March 15, 2017 https://www.amazon.co.uk/gp/aw/d/B015R50M6E/ref=mp_s_a_1_1?ie=UTF8&qid=1489605637&sr=8-1π=AC_SX236_SY340_FMwebp_QL65&keywords=aukey+jump+starter&dpPl=1&dpID=41PUi2HX2TL&ref=plSrch Get one of these. Hardly take up any space. Can charge your phone. Be a torch Be a hammer Jump start your car 1 Quote Link to comment Share on other sites More sharing options...
Red_Nic Posted March 16, 2017 Author Share Posted March 16, 2017 cheers for that link Quote Link to comment Share on other sites More sharing options...
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